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首页> 外文期刊>Harmful Algae >Genetic diversity and molecular phylogeny of Planktothrix (Oscillatoriales, cyanobacteria) strains from China
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Genetic diversity and molecular phylogeny of Planktothrix (Oscillatoriales, cyanobacteria) strains from China

机译：中国浮游细菌（蓝藻）的遗传多样性和分子系统发育

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摘要

The genus Planktothrix Anagnostidis et Komarek 1988 represents an important, water-bloom forming cyanobacterial group, and in recent years it has been found to occur in dense water blooms around China. In this study, genetic diversity and phylogeny of Planktothrix strains isolated from seventeen Chinese water bodies, based on 16S rRNA, rbcLX and rpoC1 genes, were investigated. These Planktothrix strains, all phycocyanin-containing, were morphologically classified into two groups as Planktothrix agardhii and Planktothrix mougeotii. However, phylogenetic analyses, based on the three gene regions, revealed that Planktothrix strains analyzed in this study were mainly divided into three clades, corresponding to P. agardhii, Planktothrix pseudagardhii, and P. mougeotii respectively. The strains in the P. pseudagardhii clade were shown to be more genetically divergent, reflecting possible existence of cryptic species in the genus Planktothrix.
机译：1988年，Planktothrix Anagnostidis et Komarek属是一个重要的水华形成蓝藻菌群，近年来发现它发生在中国各地的密集水华中。本研究以16S rRNA，rbcLX和rpoC1基因为基础，研究了从中国17个水域分离的浮游植物的遗传多样性和系统发育。这些全部含有藻蓝蛋白的Planktothrix菌株在形态上被分为两类：Planktothrix agardhii和Planktothrix mougeotii。然而，基于这三个基因区域的系统发育分析表明，在这项研究中分析的Planktothrix菌株主要分为三个进化枝，分别对应于P. agardhii，Planktothrix pseudagardhii和P. mougeotii。假单胞菌进化枝中的菌株显示出遗传上更趋异，反映了Planktothrix属中隐性物种的可能存在。

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  • 来源
    《Harmful Algae》 |2010年第1期|87-97|共11页
  • 作者

    Zhongxing Wu; Gongliang Yu; Mengling Zhu; Boshi Yu; Renhui Li;

  • 作者单位

    Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, PR China;

    Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, PR China;

    Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, PR China Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China;

    Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, PR China;

    Key Laboratory of Aquatic Biodiversity and Conservation Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, PR China;

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  • 正文语种 eng
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  • 关键词

    diversity; phylogeny; planktothrix; 16S rRNA; rbcLX; rpoC1; taxonomy; water bloom;

    机译：多样性系统发育浮游生物16S rRNA;rbcLX;rpoC1;分类;水华;

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